leg	site	hole	age mnemonic	auxiliary age mnemonic	top of section depth(m)	bottom of section depth(m)	special condition	age	auxiliary age	averaged age	age top of section(million years)	age bottom of section(million years)	average age(million years)t	data source
57	438	A	UPPER PLEISTOCENE		0.0	32.5		NO AGE GIVEN		NO AGE GIVEN	 0.01	  0.7	0.355	DSDP INITIAL REPORTS
57	438	A	LOWER PLEISTOCENE		32.5	46.5		NO AGE GIVEN		NO AGE GIVEN	  1.2	  1.8	  1.5	DSDP INITIAL REPORTS
57	438	A	UPPER PLIOCENE		46.5	187.0		NO AGE GIVEN		NO AGE GIVEN	  1.8	  3.4	  2.6	DSDP INITIAL REPORTS
57	438	A	LOWER PLIOCENE		187.0	386.5		NO AGE GIVEN		NO AGE GIVEN	  3.4	    5	  4.2	DSDP INITIAL REPORTS
57	438	A	UPPER MIOCENE		386.5	612.0		NO AGE GIVEN		NO AGE GIVEN	    5	 10.5	 7.75	DSDP INITIAL REPORTS
57	438	A	MIDDLE MIOCENE		612.0	631.0		NO AGE GIVEN		NO AGE GIVEN	 10.5	   16	13.25	DSDP INITIAL REPORTS
57	438	A	UPPER MIOCENE		631.0	640.5	A LEGITIMATE AGE INVERSION	NO AGE GIVEN		NO AGE GIVEN	    5	 10.5	 7.75	DSDP INITIAL REPORTS
57	438	A	MIDDLE MIOCENE		640.5	858.5		NO AGE GIVEN		NO AGE GIVEN	 10.5	   16	13.25	DSDP INITIAL REPORTS
57	438	A	LOWER MIOCENE		858.5	878.0		NO AGE GIVEN		NO AGE GIVEN	   16	 22.5	19.25	DSDP INITIAL REPORTS